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<h1>UNICODE CHARACTER DATABASE<br>
Version 3.0.1</h1>
<table border="1" cellspacing="2" cellpadding="0" height="87" width="100%">
  <tr>
    <td valign="TOP" width="144">Revision</td>
    <td valign="TOP">3.0.1</td>
  </tr>
  <tr>
    <td valign="TOP" width="144">Authors</td>
    <td valign="TOP">Mark Davis and Ken Whistler</td>
  </tr>
  <tr>
    <td valign="TOP" width="144">Date</td>
    <td valign="TOP">2000-08-17</td>
  </tr>
  <tr>
    <td valign="TOP" width="144">This Version</td>
    <td valign="TOP"><a
      href="http://www.unicode.org/Public/3.0-Update1/UnicodeCharacterDatabase-3.0.1.html">http://www.unicode.org/Public/3.0-Update1/UnicodeCharacterDatabase-3.0.1.html</a></td>
  </tr>
  <tr>
    <td valign="TOP" width="144">Previous Version</td>
    <td valign="TOP"><a
      href="http://www.unicode.org/Public/3.0-Update/UnicodeCharacterDatabase-3.0.0.html">http://www.unicode.org/Public/3.0-Update/UnicodeCharacterDatabase-3.0.0.html</a></td>
  </tr>
  <tr>
    <td valign="TOP" width="144">Latest Version</td>
    <td valign="TOP"><a
      href="http://www.unicode.org/Public/UNIDATA/UnicodeCharacterDatabase.html">http://www.unicode.org/Public/UNIDATA/UnicodeCharacterDatabase.html</a></td>
  </tr>
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<p align="center">Copyright © 1995-2000 Unicode, Inc. All Rights reserved.</p>
<h2>Disclaimer</h2>
<p>The Unicode Character Database is provided as is by Unicode, Inc. No claims 
are made as to fitness for any particular purpose. No warranties of any kind are 
expressed or implied. The recipient agrees to determine applicability of 
information provided. If this file has been purchased on magnetic or optical 
media from Unicode, Inc., the sole remedy for any claim will be exchange of 
defective media within 90 days of receipt.</p>
<p>This disclaimer is applicable for all other data files accompanying the 
Unicode Character Database, some of which have been compiled by the Unicode 
Consortium, and some of which have been supplied by other sources.</p>
<h2>Limitations on Rights to Redistribute This Data</h2>
<p>Recipient is granted the right to make copies in any form for internal 
distribution and to freely use the information supplied in the creation of 
products supporting the Unicode<sup>TM</sup> Standard. The files in the Unicode 
Character Database can be redistributed to third parties or other organizations 
(whether for profit or not) as long as this notice and the disclaimer notice are 
retained. Information can be extracted from these files and used in 
documentation or programs, as long as there is an accompanying notice indicating 
the source.</p>
<h2>Introduction</h2>
<p>The Unicode Character Database is a set of files that define the Unicode 
character properties and internal mappings. For more information about character 
properties and mappings, see <i><a
href="http://www.unicode.org/unicode/uni2book/u2.html">The Unicode Standard</a></i>.</p>
<p>The Unicode Character Database has been updated to reflect Version 3.0 of the 
Unicode Standard, with many characters added to those published in Version 2.0. 
A number of corrections have also been made to case mappings or other errors in 
the database noted since the publication of Version 2.0. Normative bidirectional 
properties have also been modified to reflect decisions of the Unicode Technical 
Committee.</p>
<p>For more information on versions of the Unicode Standard and how to reference 
them, see <a href="http://www.unicode.org/unicode/standard/versions/">http://www.unicode.org/unicode/standard/versions/</a>.</p>
<h2>Conformance</h2>
<p>Character properties may be either normative or informative. <i>Normative</i> 
means that implementations that claim conformance to the Unicode Standard (at a 
particular version) and which make use of a particular property or field must 
follow the specifications of the standard for that property or field in order to 
be conformant. The term <i>normative</i> when applied to a property or field of 
the Unicode Character Database, does <i>not</i> mean that the value of that 
field will never change. Corrections and extensions to the standard in the 
future may require minor changes to normative values, even though the Unicode 
Technical Committee strives to minimize such changes. An<i> informative </i>property 
or field is strongly recommended, but a conformant implementation is free to use 
or change such values as it may require while still being conformant to the 
standard. Particular implementations may choose to override the properties and 
mappings that are not normative. In that case, it is up to the implementer to 
establish a protocol to convey that information.</p>
<h2>Files</h2>
<p>The following summarizes the files in the Unicode Character Database. &nbsp;For 
more information about these files, see the referenced technical report(s) or 
section of Unicode Standard, Version 3.0.</p>
<p><b>UnicodeData.txt (Chapter 4, <a
href="http://www.unicode.org/unicode/reports/tr21/">UTR #21: Case Mappings</a>, <a
href="http://www.unicode.org/unicode/reports/tr15/">UAX #15 Unicode Normalization 
Forms</a>)</b>
<ul>
  <li>The main file in the Unicode Character Database.</li>
  <li>For detailed information on the format, see <a href="UnicodeData.html">UnicodeData.html</a>. 
    This file also characterizes which properties are normative and which are 
    informative.</li>
</ul>
<p><b>PropList.txt (Chapter 4)</b>
<ul>
  <li>Additional informative properties list: <i>Alphabetic, Ideographic,</i> 
    and <i>Mathematical</i>, among others.</li>
</ul>
<p><b>SpecialCasing.txt (Chapter 4, <a
href="http://www.unicode.org/unicode/reports/tr21/">UTR #21: Case Mappings</a>)</b>
<ul>
  <li>List of informative special casing properties, including one-to-many 
    mappings such as SHARP S =&gt; &quot;SS&quot;, and locale-specific mappings, 
    such as for Turkish <i>dotless i</i>.</li>
</ul>
<p><b>Blocks.txt (Chapter 14)</b>
<ul>
  <li>List of normative block names.</li>
</ul>
<p><b>Jamo.txt (Chapter 4)</b>
<ul>
  <li>List of normative Jamo short names, used in deriving HANGUL SYLLABLE names 
    algorithmically.</li>
</ul>
<p><b>ArabicShaping.txt (Section 8.2)</b>
<ul>
  <li>Basic Arabic and Syriac character shaping properties, such as initial, 
    medial and final shapes. These properties are normative for minimal shaping 
    of Arabic and Syriac.</li>
</ul>
<p><b>NamesList.txt (Chapter 14)</b>
<ul>
  <li>This file duplicates some of the material in the UnicodeData file, and 
    adds informative annotations uses in the character charts, as printed in the 
    Unicode Standard.</li>
  <li><b>Note: </b>The information in NamesList.txt and Index.txt files matches 
    the appropriate version of the book. Changes in the Unicode Character 
    Database since then may not be reflected in these files, since they are 
    primarily of archival interest.</li>
</ul>
<p><b>Index.txt (Chapter 14)</b>
<ul>
  <li>Informative index to Unicode characters, as printed in the Unicode 
    Standard</li>
  <li><b>Note: </b>The information in NamesList.txt and Index.txt files matches 
    the appropriate version of the book. Changes in the Unicode Character 
    Database since then may not be reflected in these files, since they are 
    primarily of archival interest.</li>
</ul>
<p><b>CompositionExclusions.txt (<a
href="http://www.unicode.org/unicode/reports/tr15/">UAX #15 Unicode Normalization 
Forms</a>)</b>
<ul>
  <li>Normative properties for normalization.</li>
</ul>
<p><b>LineBreak.txt (<a href="http://www.unicode.org/unicode/reports/tr14/">UAX 
#14: Line Breaking Properties</a>)</b>
<ul>
  <li>Normative and informative properties for line breaking. To see which 
    properties are informative and which are normative, consult UAX #14.</li>
</ul>
<p><b>EastAsianWidth.txt (<a href="http://www.unicode.org/unicode/reports/tr11/">UAX 
#11: East Asian Character Width</a>)</b>
<ul>
  <li>Informative properties for determining the choice of wide vs. narrow 
    glyphs in East Asian contexts.</li>
</ul>
<p><b>BidiMirroring.txt</b><b> (<a
href="http://www.unicode.org/unicode/reports/tr9/">UAX #9:&nbsp;The 
Bidirectional Algorithm</a>)</b></p>
<ul>
  <li>Informative properties for substituting characters in an implementation of 
    bidirectional mirroring.</li>
</ul>
<p><b>CaseFolding.txt (<a href="http://www.unicode.org/unicode/reports/tr21/">UTR 
#21: Case Mappings</a>)</b></p>
<ul>
  <li>Informative file mapping characters to their case-folded form.</li>
</ul>
<p><b>NormalizationTest.txt (<a
href="http://www.unicode.org/unicode/reports/tr15/">UAX #15 Unicode Normalization 
Forms</a>)</b></p>
<ul>
  <li>Normative test file for conformance to Unicode Normalization Forms.</li>
</ul>
<p><b>diffXvY.txt</b>
<ul>
  <li>Mechanically-generated informative files containing accumulated 
    differences between successive versions of UnicodeData.txt</li>
</ul>

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